Aircraft emergency distress signal monitoring system and monitoring method

Abstract

The invention belongs to the technical field of civil aviation safety guarantee, and particularly relates to an aircraft emergency distress signal monitoring system and monitoring method. The monitoring system comprises a double-frequency signal monitoring device, an information comprehensive processing device and an alarm display device, wherein the double-frequency signal monitoring device can synchronously obtain two kinds of emergency signals and carry out corresponding processing such as decoding and preliminary judgment on the position of an involved aircraft; the information comprehensive processing device can correspondingly process information transmitted by the double-frequency signal monitoring device to obtain information such as the position and the identity of the involved aircraft; and the alarm display device can be used for preprocessing data transmitted by the information comprehensive processing device, including displaying alarm information. According to the aircraft emergency distress signal monitoring system and monitoring method, a localization technical means is provided, all-day real-time monitoring of the emergency signals is realized, the operation weakness of the existing Cospas-Sarsat in a specific scene is effectively supplemented, and the signal acquisition capability of weak signal analysis error codes or incapability of receiving analysis in anelectromagnetic interference environment is improved.

Description

Technical field[0001]This application belongs to the technical field of civil aviation safety assurance, and particularly relates to an aircraft emergency distress signal monitoring system and monitoring method.Background technique[0002]With the opening of airspace, the positioning and search and rescue of civil aviation, general aviation, and transportation aircraft in distress and rescue are major issues that the aviation industry needs to solve. In recent years, many domestic and international plane crashes have failed to effectively locate and quickly rescue, causing heavy losses to personnel and property.[0003]To this end, the Emergency Locator Transmitter (ELT) was developed. ELT is one of the important systems to ensure the safety of aircraft. When a dangerous situation occurs, the ELT can be activated manually or automatically by impact or flooding in distress. The distress signal it emits can provide important clues for the search and rescue positioning after an aircraft cr...

AI Technical Summary

Problems solved by technology

[0007] However, for the above-mentioned first type of transmission route, because it is based on the Cospas-Sarsat system, the Civil Aviation Administration does not have its own monitoring means to obtain the 406MHz emergency signal at the first time. Effectively identify relevant emergency information

[0008] In addition, in the above-mentioned first type of transmission route, since the ELT at the signal transmitting end is divided into active position indicating ELT and passive positioning ELT, the digital signal sent sometimes contains the identification and position coding information of the beacon, and sometimes only Contains the identification code information of the beacon, resulting in incomplete relevant emergency information and unable to perform effective and accurate analysis and identification

[0009] Further, for the above-mentioned second type of transmission route, the emergency signal in the 121.5MHz frequency band is no longer transmitted by the Cospas-Sarsat system since 2009, and currently only air traffic control towers or aircraft at a certain flight altitude can receive relevant signals. Warning information, unable to effectively provide more relevant aircraft emergency information

Therefore, problems such as analysis errors, timeliness and insufficient effective information of emergency signals have affected the normal and safe operation of civil aviation.

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